Agricultural Shredder Deflector and Transmission Design
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Solution Overview
Problem
Traditional agricultural shredding machines are inefficient in crushing both moist and dry materials, have large dimensions, complex structures, and complex signal transfer systems, making them cumbersome and expensive to manufacture and maintain.
Innovation Solution
A compact agricultural shredding machine with a rotating drum and peripheral knives, featuring a lateral transmission system with integrated belt tensioning and a deflector mechanism that allows for double or single crushing of materials without external openings, using a single piece structure with inclined slots and pins for belt tensioning and a cardan joint for efficient signal transfer.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If traditional shredding machines use high revolutions of rotor and fixed counter-knives, then good crushing is achieved, but the crushing is not optimal for dry and hard material
Solution Approach 1:
The patent applies the dynamics principle by making the counter-knives movable rather than fixed. The counter-knives can be adjusted in position and inclination angle to adapt to different material types (moist/abundant vs. dry/hard). This dynamic adjustment capability allows the machine to optimize crushing quality for various materials while maintaining structural simplicity.
2Ease of operation
If deflectors are placed on the hood to spread shredded material, then material distribution is improved, but the machine dimensions increase and frame solidity is compromised
Solution Approach 1:
The patent extracts the deflector function from the traditional hood placement and relocates it to the rear of the machine. This repositioning allows the deflector to spread material effectively while maintaining a compact overall structure. The deflector is integrated into the rear framework without increasing machine volume or compromising frame solidity.
3Power
If traditional machines use multiple cardan joints and transmission modules, then power transmission is achieved, but the structure becomes complex and not compact
Solution Approach 1:
The patent merges multiple transmission functions into a single integrated transmission shaft system. Instead of using multiple separate cardan joints and transmission modules, the invention employs one or more transmission shafts with integrated power transmission capabilities. This reduces structural complexity while maintaining effective power transmission to the rotating drum.
4Strength
If traditional shredding machines have large dimensions, then structural stability is maintained, but the machine is not compact and easy to use
Solution Approach 1:
The patent optimizes the spatial arrangement of components by utilizing vertical space and repositioning elements in different dimensions. The rotating drum is positioned vertically, counter-knives are arranged along the drum's circumference, and the deflector is integrated at the rear. This dimensional optimization maintains structural stability while achieving a compact overall form factor.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The machine achieves optimal crushing of both moist and dry materials with reduced dimensions, simplified operation, and safer, more efficient signal transfer, while maintaining a compact and cost-effective design.
Implementation Method 1
a cardan joint for efficient signal transfer
Implementation Method 2
a rotating drum and peripheral knives
Implementation Method 3
peripheral, removable and interchangeable knives, which pick up the residues from the ground and shred them
Data Source
Figure 1a~1b
Figure 2~3
Figure 4~5
AI summary
Described is an improved agricultural machine for the cutting and crushing of residual materials (20), comprising a frame (10), inside which a shredding unit (23) is installed, which includes a rotating drum or rotor (15), designed for collecting and crushing residual materials (20) from the ground (21) before depositing them again on the ground (21) suitably shredded and/or chopped; on the frame (10) of the machine there is a shaped deflector (22), which can be operated in at least two positions, at which the residual material (20) is, respectively, conveyed outside the machine, after having made a single passage inside the shredding unit (23), or conveyed inside the rotor (15), so that the residual material (20) make one or more passages inside the shredding unit (23). In particular, the agricultural machine in question comprises a motion signal transmission unit (19) suitably composed and positioned in such a way as to reduce the overall height between the two plates (12) which is almost equal between right and left.